An Access Point Name (APN) is the name of a gateway between a GPRS (or 3G, etc) mobile network and another computer network, frequently the public Internet.
A mobile device making a data connection must be configured with an APN to present to the carrier. The carrier will then examine this identifier to determine what type of network connection should be created, for example: what IP addresses should be assigned to the wireless device, what security methods should be used, and how or if, it should be connected to some private customer network.
More specifically, the APN identifies the packet data network (PDN), that a mobile data user wants to communicate with. In addition to identifying a PDN, an APN may also be used to define the type of service, (e.g. connection to wireless application protocol (WAP) server, multimedia messaging service (MMS)), that is provided by the PDN. APN is used in 3GPP data access networks, e.g. general packet radio service (GPRS), evolved packet core (EPC).
Here is a list of APN names of almost all popular mobile operators in India and their manual GPRS settings.
| Network Name | APN | Dial No. | User Name | Password |
| Airtel 2g/3g | airtelgprs.com | *99# | Blank | Blank |
| BSNL 2g/3g | bsnlnet/bsnllive | *99# | Blank | Blank |
| Aircel 2g/3g | aircelgprs /aircelweb | *99# | Blank | Blank |
| Idea 2g/3g | internet | *99# | Blank | Blank |
| Reliance 2g/3g | smartnet | *99# | Blank | Blank |
| Tata Docomo 2g/3g | tata.docomo.internet | *99# | Blank | Blank |
| Vodafone | www | *99# | Blank | Blank |
| Virgin | vinternet.com | *99# | Blank | Blank |
| Videocon 2g/3g | vgprs / vinternet | *99# | Blank | Blank |
| Spice 2g/3g | spiceindia | *99# | Blank | Blank |
| STEL 2g/3g | gprs.stel.in | *99# | Blank | Blank |
| Hutch 2g/3g | hutchworld | *99# | Blank | Blank |
=======================================
How to set apn on mobile partner ?
1. At first go to setting option on mobile partner.
2. Then click on option.
3. In option select profile management.
4. Then click on New button and create your new profile.
5. In profile name write your network name or anything else. Now click on static and fill the apn name.
NOTE: Leave user name and password blank.
Update:
| Network Name | APN | Dial No. | User Name | Password |
| MTNL 2g/3g (Mumbai-prepaid) | gprsppsmum | *99# | mtnl | mtnl123 |
| MTNL 2g/3g (Mumbai-postpaid) | gprsmtnlmum | *99# | mtnl | mtnl123 |
| MTNL 2g/3g (Delhi-prepaid) | gprsppsdel | *99# | mtnl | mtnl123 |
| MTNL 2g/3g (Delhi-postpaid) | gprsmtnldel | *99# | mtnl | mtnl123 |
| Tata Docomo 3g Datacard | tatadocomo3g | *99# | Blank | Blank |
| BSNL South 2g/3g | gprssouth.cellone.in | *99# | Blank | Blank |
| Reliance GSM- RTL 2g/3g | rcomnet | *99# | Blank | Blank |
| Vodafone(Jammu-Kashmir) | jjkgprs | *99# | Blank | Blank |